จำนวน Repository ( 268 )
เครื่องทดสอบพฤติกรรมความเสียดทานของผ้าเบรก
Nowadays the automotive industry in Thailand has been widely growing. Brake pad is one of the automotive products that play a vital role in automotive industry because it is the most critical seeurity part. Consequently testing products for quality are extremely requested. However the precise equipment and function tests which show the real effects are not available enough and cost a lot. Therefore they cannot response to the deman in the automotive industry development. In this study the frictional test jigs for friction measurement JIS K7125 [5] and the clutch facings for automobiles JIS D4311 [6]. A study of the frictional test emphasizes on the static friction (μs) and kinetic friction (μk) in different condition. There are 3 specimens of brake pad supposted by the industry company. These specimens were tested and the results from the pin-ondisk and those from the friction testing were compared. The results revealed the correspondence of the two-sided results but the pin-on-disk’s friction coefficient is more than the friction testing’s friction coefficient by 19.56%. Moreover the coefficient of friction varies according to the temperature Besides the static friction (μs) is likely more than kinetic friction (μk) and tends to differ considerably under high pressure condition.
การศึกษาพฤติกรรมค่าการนำความร้อนของผ้าเบรกรถยนต์
Nowadays one of the automotive engineering is conductivity of brake pads playing a role in friction coefficient which means safety of customer. Thus thermal properties have been improved using composited materials. This project aims to study the conductivity behavior of 3 different brake pads which are supported by the company Compact International (1994) Ltd. For experimental works temperature based on brake condition was simulated from 200 to 400°C and cooled down from 400 to 200°C at 1 5 and 8 MPa of pressure respectively. By standard JIS D4413 testing condition of pressure was referred. The non-linear of conductivity value are calculated from the temperature under steady state condition. As a result of testing there are several of parameters effecting on the non-linear conductivity value. The brake pad that is a mix of high-fiber occurs the fluctuation of thermal conductivity. At the same time lubricant in the brake pad cause the stability of conductivity value in different temperature range at the same pressure. On the other hand the brake pad mixed hi-copper inspires the narrow range of conductivity value in different pressures at the same temperature. Moreover the conductivity value as a mention is inversely proportion with the coefficient of kinetic friction.
ผลิตสื่อวีดิทัศน์ การพัฒนานวัตกรรมรูปแบบผลิตภัณฑ์สิ่งทอจากผ้าไหม นาโพธิ์ บุรีรัมย์ ด้วยวัฒนธรรมเชิงอุตสาหกรรม
The aim of this research is produced the media of history of local craft center in Napho district Buriram province and also the production processes of Mud Mee silk fabric. The process in weaving the silk Mud Mee is meticulously performed in every step beginning from the processes as follows; selecting of silk yarn degumming dyeing Thok Kwuak Khon Mee put the yarn on Hong Mud Mee Bleaching untied silk yarn roll the untied silk yarn onto the warping reel and reel the yarn from the spool rack to the spinning wheel. From the data which obtained from the research to produce media such as leaflets poster and VDO. This media are devised into four topics include Thai and English language as follows; (1) the local craft center in Na Pho district Buriram province Thailand (2) preparation and dyeing of silk yarn for Mad Mee silk fabric (3) Mud Mee weaving process: weaving pattern design and colour of Napho Buriram silk fabric (4) innovative development of clothing bag home textile from Mud Mee silk fabric. The benefits of produced media to be as a local learning center and cultural tourism place for doing study field trip researching. The media are there to guide the history of local craft center Mud Mee silk fabric production and Mud Mee silk product for those who are interested and transferring knowledge by the media to student and also some group learning.
การพัฒนานวัตกรรมรูปแบบกระเป๋าแฟชั่นจากผ้าไหมนาโพธิ์ บุรีรัมย์ ภายใต้โครงการ การพัฒนานวัตกรรมรูปแบบผลิตภัณฑ์สิ่งทอ (OTOP) จากผ้าไหมนาโพธิ์ บุรีรัมย์ ด้วยวัฒนธรรมเชิงอุตสาหกรรมสู่สากล (AEC)
The research aims to develop the innovation development of fashion bags design and the product design by using silk fabric Napho District Buriram. To introduce the technical innovation development of fashion bags design and development of the product design by using silk fabric Napho District Buriram and to develop Thai Community Product Standard (TCPS.) in Buriram Province. The instruments used in research were interview the comment assessment form and the designs assessment form. The sample consisted of 100 interested people. The statistics tools used in data analyzing were frequency percentage mean and standard deviation. The result of the research found that Ban Napho Community Enterprise Group in Buriram Province produced the silk fabric with complex patterns in various colours and styles. It was local knowledge that was unique and useful in conservation education as well as in development. Ban Napho Group have designed and produced textile products by using silk fabric such as Tailor fabric clothing bag scarf and other but they needed to be continually upgrade the designs in order to modernize. The result in this research regarding to fashion bag design revealed that most respondents from the 100 interested people were female employee aged 31 to 40 years having an average income 5001 to 10000 baht and below a Bachelors degree. For the design assessment the result showed that these interested people had positive attitude level in prototype fashion bag No.5 for pattern design application and the overall average at 84 85 and 86 percentages respectively. The transfer of technology evaluation the results showed that prototype fabric bag No.5 was positive attitude in high level for overall pattern design and decorating at 86 percentages and prototype fabric bag No.6 was at 82 percentages respectively. The research finalized the highest score of prototype fabric bags and 5 phototypes were selected without respectively such as phototype No.1 2 5 6 and 9. They were selected for making the sample in order to introduce the knowledge to the local community.
การพัฒนานวัตกรรมรูปแบบลวดลายทอและสีผ้าไหมนาโพธิ์ บุรีรัมย์
Mudmee silk and silk weaving are the long carried cultural wisdom heritages inherited from ancestors. Buriram is another province where weaves Thai silk especially in Na Pho district. Na Pho Silk Weaving Center (Na Pho Handicraft Center) has been known for madmee silk and silk weaving in quality standardization and popular. It is retaining traditional patterns and colors. New patterns are created but not much and not very suitable to produce various products. There is an attempt to revamp image of silk fabric and mudmee silk to raise value and use of color in universal design. The development for silk fabric designing and coloring in Na Pho received support for standardization. The design patterns has been inspired by mudmee silk’s ancient patterns Na Pho district Buriram province. The highlight of ancient patterns including Lai Khom Lai Tad Lai Song Pool Lai Khor Lai Eid Tong Lai Kra Tae Nang Tan or Lai Nak Lai Kho Pai and Lai Kho Lo (Butterfly) are applied in the process of assigning weaves/colors the size of the space and color placement for various patterns and application but it is still retaining the original pattern. Single color is applied for such patterns and become visible through its different including navy blue blue and bluepurple. Study of variation results in color fastness to washing color fastness to light color fastness to water and color fastness to perspiration of silk fabric and mudmee silk showed after dyeing. Color fastness to washing exhibited very good wash fastness level of (4-5) Color fastness to light exhibited excellent light fastness level of (5) Color fastness to perspiration (acid and alkaline) exhibited very good level of (4-5) and Color fastness of water exhibited moderate level of (4) The assessment reviews regarding patterns textures colors and products from silk fabric and mudmee silk from 20 samples of Na Pho Silk Weaving Center (Na Pho Handicraft Center) Na Pho district Buriram Province revealed that Pattern of silk fabric and mudmee silk of Na Pho Buriram province still retained pattern and exhibited excellent value of (75 percent) and good value of (25 percent). Pattern was contemporary between traditional motifs and new design exhibited excellent value of (50 percent) good value of (40 percent) and moderate value of (10 percent). Pattern was not difficult and not too easy. It was suitable to weave for silk fabric and mudmee silk exhibited excellent value of (85 percent) and good value of (15 percent). Pattern layout still retained the method of the traditional motifs exhibited excellent value of (60 percent) good value of (30 percent) and moderate value of (10 percent). Placement and spacing of patterns were balanced and not too tight exhibited excellent value of (70 percent) good value of (25 percent) and moderate value of (5 percent). The suitable of pattern layout in vertical horizontal diagonal and stripes which involved in the manufacture of textile products exhibited excellent value of (75 percent) good value of (20 percent) and moderate value of (5 percent). Color placement was harmonized and suitable for manufacture of textile products exhibited excellent value of (60 percent) good of (35 percent) and moderate value of (5 percent). Pattern become visible through its difference when dark color is applied for silk fabric and mudmee silk with exhibited excellent value of (65 percent) and good value of (35 percent). The suitable of apply single color and color which is similar to for the fashion and textile product exhibited excellent value (50 percent) good value (35 percent) and moderate value (15 percent). The application of the new pattern from the silk fabric and mudmee silk products exhibited contemporary with excellent value of (85 percent) good value of (10 percent) and moderate value of (15 percent). Bags products from using silk fabric and mudee silk maintained the same identity with excellent value of (70 percent) and good value of (30 percent). Textiles products from silk fabric and mudee silk Na Pho Buriram province exhibited excellent value of (60 percent) good value of (35 percent) and moderate value of (5 percent)